Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NN1U callsign genealogy
Currently held by Paolantonio, Alfonso M
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by NN1U's current licensee, walking backwards.
- Noguchi, HikaruORgranted 2020-11-23cancelled 2023-09-12
Successor callsigns
Callsigns held now by people who previously held NN1U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NN1U, oldest first.
- Paolantonio, Alfonso M RI2011-04-11 → cancelled 2023-07-12
- Noguchi, Hikaru OR2023-09-12 active